JPS56120904A - Measuring method for rate of removal of coating film - Google Patents

Measuring method for rate of removal of coating film

Info

Publication number
JPS56120904A
JPS56120904A JP2571280A JP2571280A JPS56120904A JP S56120904 A JPS56120904 A JP S56120904A JP 2571280 A JP2571280 A JP 2571280A JP 2571280 A JP2571280 A JP 2571280A JP S56120904 A JPS56120904 A JP S56120904A
Authority
JP
Japan
Prior art keywords
rate
measured
steel plate
range
removal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2571280A
Other languages
Japanese (ja)
Inventor
Takaaki Kamidera
Osamu Endo
Nobuyoshi Hirota
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHUGOKU TORYO KK
Chugoku Marine Paints Ltd
Original Assignee
CHUGOKU TORYO KK
Chugoku Marine Paints Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CHUGOKU TORYO KK, Chugoku Marine Paints Ltd filed Critical CHUGOKU TORYO KK
Priority to JP2571280A priority Critical patent/JPS56120904A/en
Publication of JPS56120904A publication Critical patent/JPS56120904A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
    • G01B11/06—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material
    • G01B11/0616—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material of coating

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

PURPOSE:To enable judgement of the rate of removal of a coating film without causing any error in judgement by projecting a visible light flux whose wavelength is within the range of 400-700mum on a surface to be measured and by measuring the rate of diffused reflection of the flux. CONSTITUTION:A visible light emitted from a light source 1 and having wavelength in the range of 400-700mum is applied on the surface of a coated steel plate 3 to be measured through a lens 2, the diffused beam of light reflected from the surface of the coated steel plate 3 is condensed through a beam-condensing lens 5 and transduced into photoelectric current by a photoreceptor 6, the current is measured by a galvanometer 7, and, according to the amplitude of the current, the rate of removal of the coating film is judged. On the occasion, the device is constituted so that the angle of the center line of the light flux from the light source 1 to the surface of the coated steel plate 3 to be measured is in the range of 45+ or -5 deg. and that the angle of the surface of the steel plate 3 to the center line of the photoreceptor 6 is in the range of 90+ or -10 deg..
JP2571280A 1980-02-29 1980-02-29 Measuring method for rate of removal of coating film Pending JPS56120904A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2571280A JPS56120904A (en) 1980-02-29 1980-02-29 Measuring method for rate of removal of coating film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2571280A JPS56120904A (en) 1980-02-29 1980-02-29 Measuring method for rate of removal of coating film

Publications (1)

Publication Number Publication Date
JPS56120904A true JPS56120904A (en) 1981-09-22

Family

ID=12173397

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2571280A Pending JPS56120904A (en) 1980-02-29 1980-02-29 Measuring method for rate of removal of coating film

Country Status (1)

Country Link
JP (1) JPS56120904A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60244839A (en) * 1984-05-19 1985-12-04 Kureha Chem Ind Co Ltd Material testing instrument
EP0228765A2 (en) * 1985-10-01 1987-07-15 The University Of Liverpool Device for monitoring the position of a surface of a body, in particular the thickness of a coating
JPS63200040A (en) * 1987-01-22 1988-08-18 カール・ツアイス―スチフツング Diffuse reflectance measuring device for noncontact measurement
FR2656465A1 (en) * 1989-12-21 1991-06-28 France Etat METHOD FOR MEASURING THE DIMENSIONS OF A SPACER.
WO2022202198A1 (en) * 2021-03-25 2022-09-29 ジャパンマリンユナイテッド株式会社 Evaluation method and evaluation device for surface roughening of metal surface

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60244839A (en) * 1984-05-19 1985-12-04 Kureha Chem Ind Co Ltd Material testing instrument
JPH027020B2 (en) * 1984-05-19 1990-02-15 Kureha Chemical Ind Co Ltd
EP0228765A2 (en) * 1985-10-01 1987-07-15 The University Of Liverpool Device for monitoring the position of a surface of a body, in particular the thickness of a coating
JPS63200040A (en) * 1987-01-22 1988-08-18 カール・ツアイス―スチフツング Diffuse reflectance measuring device for noncontact measurement
FR2656465A1 (en) * 1989-12-21 1991-06-28 France Etat METHOD FOR MEASURING THE DIMENSIONS OF A SPACER.
EP0446549A2 (en) * 1989-12-21 1991-09-18 France Telecom Procedure to measure the dimensions of a spacer
WO2022202198A1 (en) * 2021-03-25 2022-09-29 ジャパンマリンユナイテッド株式会社 Evaluation method and evaluation device for surface roughening of metal surface
JP2022149261A (en) * 2021-03-25 2022-10-06 ジャパンマリンユナイテッド株式会社 Method and device for evaluating surface roughening treatment on metallic surface

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